Skip the auto shop - Our mechanics make house calls

Q: Car not starting

asked by on

I really hope you guys can help me out I have 99 town car , I had to change the intake manifold on it so I did , but now the car doesn't want to start I checked if there's spark and there is , checked the fuel pressure and the pump , everything is working so why would it not start , I also tried putting starting fluid and it started right away for a coupe of seconds of course , again I really hope you can tell me what's wrong , thank y'all very much .

My car has 100000 miles.

A: Hi there. From the description you provided...

Hi there. From the description you provided, using starting fluid and the engine starting, leads me to believe no fuel is present. Assuming, the fuel pressure test is accurate and within specification, leads me to believe there is no injector signal. This may be the result of a blown PCM fuse. If power is present at the fuel injector connector, installing a noid light into the injector connector and cranking the engine is the next step. The noid light should flash as the engine cranks. If this does not happen, look for a loose ground wire, that may have been inadvertently left disconnected. I recommend having your vehicle’s no start be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

A: Hi there: It’s very possible that during y...

Hi there:

It’s very possible that during your intake manifold swap out that the crankshaft position sensor may have been damaged or incorrectly reinstalled; as I believe that needs to be removed in order to replace the intake manifold on your Town Car. There are about two dozen or so mechanical or electrical parts that all contribute to the starting process of any vehicle, so you might want to have a professional mobile mechanic complete a car is hard to start inspection first; so they can pinpoint the source of the issue and recommend the right repairs be completed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Transmission problem?

Hello, It sounds like you may have a transmission synchro wearing out. As you may know, when a clutch drags, it is not letting go of the disk fully which overloads the synchros and burns up the friction surfaces quickly....

Q: Door not closing.

Door lock latches can get moved from their original position, preventing them from closing around the striker. You may just need to move the latch to its original position. This can be done by unlocking the door, pulling the handle...

Q: Fuel vapor leak

A mechanic would need to do a through inspection to see why the injectors were damaged, and check all vent hoses for leaks. Sometimes, a smoke machine can be used to find what is leaking. I recommend having a mechanic,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...